Upgrading from Oracle Reports 10.1.2.x to 11g Release 1 (11.1.1) is fully automated:
Integrated with Oracle Fusion Middleware Upgrade framework.
Automated configuration reduction mapping.
Extensive logging and diagnostics.
No loss of functionality.
Oracle Reports 11g Release 1 (11.1.1) is fully backward compatible and interoperable with 10.1.2.x:
10.1.2.x server/client compatible with 11g Release 1 (11.1.1) server/client.
10.1.2.x reports can be run without any changes or loss of functionality.
Support for Oracle Portal and Oracle Internet Directory based security along with new Java EE security.
Support for 10.1.2.x Toolkit-based font model along with new Java-based font model.
Support for interoperability with 10.1.2.x Oracle Forms Services, Oracle Portal, and Oracle Internet Directory.